What grinds your gears?

You want to know what else grinds my gears?

Showing up to the oral surgeon's office at 12:30 for a 1:00 appointment only to find that the entire office is out to lunch. Then everyone who works there finally showing up at 1:00 and slowly getting to work. The world is becoming lazy and unappreciative of promptness. */me puts on old curmudgeon hat*